 (def edn-content
 "{:title \"REQUIRED\"
  :subtitle \"\"
+ :header-image \"\"
  :excerpt \"\"
  :author \"REQUIRED\"
  :twitter \"\"

(def stub-metadata
"{:title \"REQUIRED\"
 :subtitle \"\"
 :excerpt \"\"
 :author \"REQUIRED\"
 :twitter \"\"

(def rfc5322-content
"Subject: REQUIRED (title)
Subtitle:
Header-Image:
Excerpt:
From: REQUIRED (author)
Twitter:
